Short answer: the W-King X10, though neither ranks well in its class. It ranks #87 of 100 boombox speakers by sound quality, rated 2.3/5, at $80; the Zealot S78 ranks #99, rated 2.0/5, and costs $159.68, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 100 boombox speakers, and the Tribit Stormbox Blast, ranked #2 at $179.99, is a better place to start if sound quality matters.
The W-King X10 is the lighter pick. A 6.5 lbs (2.95 kg) portable speaker with a rated 42-hour battery, 70W RMS output, IPX6 waterproofing and a power bank function. At 6.5 lbs (2.95 kg) it weighs noticeably less than the Zealot S78 at 9.7 lbs (4.4 kg). The catch: Heavily rolled off treble, less bass than the top ranked.
Why pick the Zealot S78: A robust 9.7 lbs (4.4 kg) party speaker with claimed 120W RMS output, IP67 protection, USB-C charging, a power-bank function, aux, USB and microSD playback, TWS pairing and multiple EQ modes. The tradeoff: At high volume, reviews report distortion and fluctuating level, so its headline power is more useful below its maximum setting.
Buy the W-King X10. It is rated higher for sound quality than the Zealot S78 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A 2.95 kg portable speaker with a rated 42-hour battery, 70W RMS output, IPX6 waterproofing and a power bank function.
Amazon $80 AliExpress $80.37 eBay
A robust 4.4kg party speaker with claimed 120W RMS output, IP67 protection, USB-C charging, a power-bank function, aux, USB and microSD playback, TWS pairing and multiple EQ modes.
Amazon $159.68 AliExpress $91.38 eBayPrices on this page were last checked October 15, 2026 at 5:41 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| W-King X10 | Zealot S78 | |
|---|---|---|
| Price | $80 | $159.68 |
| Ranked | #87 of 100 in Boombox Size Portable Bluetooth Speakers | #99 of 100 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 52Hz | - |
| Battery Life | 42 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| IP Rating | IPX6 | IP67 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | Yes |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 6.5 lbs (2.95 kg) | 9.7 lbs (4.4 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | Yes (2 modes - Indoor/Outdoor) | Yes (multiple modes) |
| Party Mode | No | No |
| USB Playback | Yes | Yes |
| Built-in Microphone | Yes | No |
| Power Input | USB-C | USB-C |
| FM Tuner | No | - |
| Bluetooth Version | 5.0 | 5.3 |
| Amplifier Power | 70W RMS (120W peak) | 120W RMS / 150W peak |
| Dimensions | 12.4” x 5.5” x 5.3” (315 x 140 x 135 mm) | 16.1” x 6.6” x 7.3” (410 x 167 x 185 mm) |
| Drivers | 2x 3.66” (93mm) subwoofers + 2x 1.2” (31mm) neodymium tweeters + 3x passive radiators | 2x ~120mm (4.72”) woofers + 2x ~42mm tweeters + 2x passive radiators |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | Yes (detachable shoulder strap) |
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